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30020020283 = 1169112593137
BaseRepresentation
bin11011111101010101…
…010010100000111011
32212111010222001001002
4123331111102200323
5442440111122113
621442505115215
72111631651011
oct337525224073
985433861032
1030020020283
1111805578620
125999788b0b
132aa5584816
14164ad7a8b1
15baa780c58
hex6fd55283b

30020020283 has 16 divisors (see below), whose sum is σ = 32833019520. Its totient is φ = 27221107200.

The previous prime is 30020020267. The next prime is 30020020307. The reversal of 30020020283 is 38202002003.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 30020020283 - 24 = 30020020267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30020020783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9568091 + ... + 9571227.

It is an arithmetic number, because the mean of its divisors is an integer number (2052063720).

Almost surely, 230020020283 is an apocalyptic number.

30020020283 is a deficient number, since it is larger than the sum of its proper divisors (2812999237).

30020020283 is a wasteful number, since it uses less digits than its factorization.

30020020283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5098.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 30020020283 its reverse (38202002003), we get a palindrome (68222022286).

The spelling of 30020020283 in words is "thirty billion, twenty million, twenty thousand, two hundred eighty-three".

Divisors: 1 11 691 1259 3137 7601 13849 34507 869969 2167667 3949483 9569659 23844337 43444313 2729092753 30020020283